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Figure 21. Objective, eyepiece and reticle, and optical plumbing.
Figure 23. Target.
Target Set, Surveying: Circular Level And Optical Plummet In Tribrach W/(Quick Release Mechanism
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7
Screw
4
Center
1
Plate
5
Frame
2
Plate
8
Pivet
9
Screw
6
Brace
3
Screw
Figure
22.
Target
frame.
46
AGO
10139A
